Support talos system extensions

[mrueg]

This might be the opposite of your effort in #1247
It would be nice to support talos system extensions in some shape or form.
(In particular interested in https://github.com/siderolabs/extensions/tree/main/network/tailscale )

I think a way to extend the talos config with a custom config would be nice.

[onedr0p]

This seems reasonable once I am done refactoring the config file to make it more structured for options like this

[buroa]

@mrueg Is there a good reason to use the extension over just doing this?

[mrueg]

@buroa my hope was to expose the kube api via tailscale as well (I haven't looked into the extension yet, if it's possible). So I wanted to keep it outside of the cluster.

[buroa]

@mrueg You can do that just fine deploying it like I do. Nothing is special about the Talos extension way, it's just a bit weird.

[wasurerarenai]

Some discussion on this via talhelper schematics is in #1251 (reply in thread). Refactor looks solid at #1267

[onedr0p]

@mrueg I merged that PR, hopefully this covers your use-case.

[mrueg]

thanks a lot!